Mary liked the watch so much that she used what she had to pay for it. Now only five cents .
A. remained
B. left
C. was remained
D. was leaving
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(答案→)A. remained
B. left
C. was remained
D. was leaving
解析：考查remain与leave的区别。remain是不及物动词，没有被动形式，故排除C；而leave是及物动词，应用被动形式，故排除B和D, 故A正确。